Mods for Yaesu 897D

I have an 897D. The 60 meter frequencies are channelized and I would like to change that. Has there
been a mod for that or is just simply opening the rig for general receive and transmit the answer?
Tks
N8KG/Ken

Be careful if you CHIRP with your 897. I tried using it with my 857 (electronically identical to the 897) and it reset the rig to factory specs. Then I spent 2 frustrating hours re-programming the thing.